diff options
author | David Woodhouse <dwmw2@infradead.org> | 2007-01-18 10:34:51 +1100 |
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committer | David Woodhouse <dwmw2@infradead.org> | 2007-01-18 10:34:51 +1100 |
commit | 9cdf083f981b8d37b3212400a359368661385099 (patch) | |
tree | aa15a6a08ad87e650dea40fb59b3180bef0d345b /arch/sparc/lib/atomic32.c | |
parent | e499e01d234a31d59679b7b1e1cf628d917ba49a (diff) | |
parent | a8b3485287731978899ced11f24628c927890e78 (diff) |
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
Diffstat (limited to 'arch/sparc/lib/atomic32.c')
-rw-r--r-- | arch/sparc/lib/atomic32.c | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/arch/sparc/lib/atomic32.c b/arch/sparc/lib/atomic32.c index de84f8534ba..53ddcd9d1e6 100644 --- a/arch/sparc/lib/atomic32.c +++ b/arch/sparc/lib/atomic32.c @@ -76,3 +76,42 @@ void atomic_set(atomic_t *v, int i) spin_unlock_irqrestore(ATOMIC_HASH(v), flags); } EXPORT_SYMBOL(atomic_set); + +unsigned long ___set_bit(unsigned long *addr, unsigned long mask) +{ + unsigned long old, flags; + + spin_lock_irqsave(ATOMIC_HASH(addr), flags); + old = *addr; + *addr = old | mask; + spin_unlock_irqrestore(ATOMIC_HASH(addr), flags); + + return old & mask; +} +EXPORT_SYMBOL(___set_bit); + +unsigned long ___clear_bit(unsigned long *addr, unsigned long mask) +{ + unsigned long old, flags; + + spin_lock_irqsave(ATOMIC_HASH(addr), flags); + old = *addr; + *addr = old & ~mask; + spin_unlock_irqrestore(ATOMIC_HASH(addr), flags); + + return old & mask; +} +EXPORT_SYMBOL(___clear_bit); + +unsigned long ___change_bit(unsigned long *addr, unsigned long mask) +{ + unsigned long old, flags; + + spin_lock_irqsave(ATOMIC_HASH(addr), flags); + old = *addr; + *addr = old ^ mask; + spin_unlock_irqrestore(ATOMIC_HASH(addr), flags); + + return old & mask; +} +EXPORT_SYMBOL(___change_bit); |